Photoinduced charge transfer through films containing poly(hexylthiophene), phthalocyanine, and porphyrin–fullerene layers

Kaunisto, Kimmo; Vahasalo, Heidi; Chukharev, Vladimir; Tkachenko, Nikolai V.; Vivo, Paola; Niemi, Marja; Tolkki, Antti; Efimov, Alexander; Lemmetyinen, Helge

doi:10.1016/j.tsf.2008.11.055

Cited by 17 publications

(29 citation statements)

References 57 publications

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“…Kaunisto et al demonstrated interlayer electron transfer from a Zn phthalocyanine to a porphyrin fullerene dyad by studying the time-resolved photovoltages of the composite material [81,82]. The mixtures of the porphyrin dyad and phthalocyanine exhibited maximum external quantum efficiencies of 0.8% (430 nm) with overall conversion efficiencies of about 0.024%.…”

Section: Self-assembled Films (Liquid Crystal) Solar Cellsmentioning

confidence: 99%

Porphyrins and phthalocyanines in solar photovoltaic cells

Walter

Rudine

Wamser

2010

J. Porphyrins Phthalocyanines

632

375

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This review summarizes recent advances in the use of porphyrins, phthalocyanines, and related compounds as components of solar cells, including organic molecular solar cells, polymer cells, anddye-sensitized solar cells. The recent report of a porphyrin dye that achieves 11% power conversion efficiency in a dye-sensitized solar cell indicates that these classes of compounds can be as efficient as the more commonly used ruthenium bipyridyl derivatives.

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Section: Self-assembled Films (Liquid Crystal) Solar Cellsmentioning

confidence: 99%

Porphyrins and phthalocyanines in solar photovoltaic cells

Walter

Rudine

Wamser

2010

J. Porphyrins Phthalocyanines

632

375

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“…The description of the method and data interpretation are reported in several publications. [13][14][15]17,19,29,30 Samples were excited by a 10 ns laser pulse at 430 nm from the second harmonic of a titanium-sapphire laser pumped by the second harmonic of a Q-switched Nd:YAG laser (532 nm), and at 532 nm from the second harmonic of a Q-switched Nd:YAG laser. The typical sample structure for the PV measurements was ITO|11-12ÂODA-layers|active-layers|20Â ODA-layers|InGa liquid-metal drop electrode (InGa).…”

Section: Electron Transfer Measurementsmentioning

confidence: 99%

“…The long-lived behavior of the bilayer systems can be attributed to the increased CS distance in the P + -F|PTCDI À film structure, followed by a lateral charge migration in the P + and PTCDI À layers. 14,15 The ET from P-F to PTCDI takes place independently of which molecular layer is photoexcited. Fig.…”

Section: Electron Transfermentioning

confidence: 99%

“…[9][10][11][12] Recently it was demonstrated how to achieve a vectorial multistep electron transfer by combining molecular films of dyads with electron donor or acceptor layers. [13][14][15][16][17] In the reported studies, Langmuir-Blodgett (LB) technique has been adopted to prepare the films. In most of the cases, an octadecylamine (ODA) matrix had to be mixed with the active molecules in order to obtain LB films with a transfer ratio close to unity.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the main idea that the introduction of ODA, which is an insulator, could decrease the conductivity of the films, the latest research in our laboratory aimed to build molecular film structures constituted by active molecules alone, and to study the ET in such film systems. The compounds selected for our analysis were a porphyrin-fullerene dyad (P-F), synthesized 18 in our laboratory and widely studied before, [13][14][15][16][17][19][20][21] and perylenetetracarboxidiimide (PTCDI).…”

Section: Introductionmentioning

confidence: 99%

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Photoinduced electron transfer in thin films of porphyrin–fullerene dyad and perylenetetracarboxidiimide

Vivo

Алексеев

Kaunisto

et al. 2010

Phys. Chem. Chem. Phys.

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Photoinduced intra- and intermolecular electron transfer (ET) in thin films of porphyrin-fullerene dyad (P-F) and perylenetetracarboxidiimide (PTCDI) was studied by means of photoelectrical and spectroscopic methods. Films consisting of smooth 100 mol% layers of P-F and PTCDI were prepared by the Langmuir-Schäfer (LS) technique and thermal evaporation, respectively. The time-resolved Maxwell displacement charge (TRMDC) and laser flash-photolysis methods were utilized to demonstrate photoinduced ET from P-F to PTCDI regardless of which chromophore is photoexcited. Finally, the information about the electron movement in the respective thin films was used to build a layered organic solar cell, whose internal quantum yield (Φ(I)) of collected charges was 13%.

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